public void hide()
{
label1.Hide();
Red_test.Hide();
Blue_test.Hide();
Green_test.Hide();
label2.Show();
Answer1.Show();
Answer2.Show();
Answer3.Show();
Answer4.Show();
button1.Show();
richTextBox1.Show();
}
// get (Number of theme - 1)
// return Number of question
// or -1 if question list is empty
private void GetQuestion(int theme)
{
string questNodeName = "";
switch (theme)
{
case 0:
questNodeName = "cycles";
break;
case 1:
questNodeName = "arrays";
break;
case 2:
questNodeName = "lines";
break;
case 3:
questNodeName = "recursion";
break;
case 4:
questNodeName = "struct";
break;
case 5:
questNodeName = "file";
break;
case 6:
questNodeName = "addresses_and_pointers";
break;
case 7:
questNodeName = "dynamic_memory";
break;
default:
return;
}
if (amount == 0)
{
for (int i = 0; i < MAX_QUESTIONS_TRAIN; i++)
{
isOpened[i] = -1;
}
}
XmlDocument doc = new XmlDocument();
doc.Load("testing.xml");
XmlNode rootNode = doc.DocumentElement; // <testing>
foreach (XmlNode themeNode in rootNode)
{
if (themeNode.Name == questNodeName)
{
Random rnd = new Random();
int question = rnd.Next() % themeNode.ChildNodes.Count;
bool exit = false;
while (!exit)
{
int i;
for (i = 0; i < amount; i++)
{
if (isOpened[i] == question)
{
question = rnd.Next() % themeNode.ChildNodes.Count;
break;
}
}
if (i == amount)
{
exit = true;
}
}
isOpened[amount] = question;
amount++;
foreach (XmlNode questionNode in themeNode.ChildNodes[question])
{
if (questionNode.Name == "quest")
{
cur_question = questionNode.InnerText;
}
else if (questionNode.Name == "true")
{
cur_answer = questionNode.InnerText;
}
else if (questionNode.Name == "answer1")
{
Answer1.Show();
Answer1.Text = questionNode.InnerText;
}
else if (questionNode.Name == "answer2")
{
Answer2.Show();
Answer2.Text = questionNode.InnerText;
}
else if (questionNode.Name == "answer3")
{
Answer3.Show();
Answer3.Text = questionNode.InnerText;
}
else if (questionNode.Name == "answer4")
{
Answer4.Show();
Answer4.Text = questionNode.InnerText;
}
}
button2.Show();
}
}
}